jf-common: enable LTE mobile network settings

Change-Id: Id6f679d1bc529676d20c9dedc9f8b5a3ee168ea1
Enable NEEDS_VECTORIMPL_SYMBOLS which is needed for the blobs.

Fixes camera after Dhackers core merge.

******  MUST HAVE -> https://gerrit.omnirom.org/#/c/3005/  <-

Change-Id: I6a1d59da1158a58180b1d8708d96259c91f999b2
Revert "Revert "jf: move egl.cfg from msm8960-common""

This reverts commit ba829eb55b5610a81fdfba833af2b5f111776c99.

Change-Id: Iea4cb0d206187c502f208e07fcd34024b2e60c9e